To check your mount pop the hood put the car in gear and foot on brake slowly give it some gas. The motor should just barely rise on the left side. If it raises a couple of inches and drops when you let off the gas your driver side mount is broke. For awhile I thought my tranny mount was broke because when I went over a hhard bump I would get a nasty thunk right in the center console. It turned out to be a blown rear shock. There is a TSB about the shocks going bad. Replaced rear shocks and problem solved.